<%@page contentType="text/html;charset=UTF-8" language="java"%>
<html>
<head>
    <meta charset="UTF-8">
    <title>表达式实例1</title>
</head>
<%!
    String url="expressionHref.jsp";
%>
<body>
<a href="<%=url%>"></a>
        <form action="<%=url%>">
    <input type="submit" value="点击跳转">
    </form>
</body>
</html>